If the St. Louis Rams had been in the NFC North in place of, say, Minnesota, they would have pwned the division. Each division has 12 wins and 12 losses from intra-division games, so I'm subtracting those. Here are the division records.

OK, so the NFC North wasn't the crappiest division in football, just a good candidate. What's interesting is that the next crappiest division was the NFC East, and the NFC North played the NFC East. The NFC North also played the AFC North which wasn't real spectacular either.